Table 1 Consensus definitions related to intra-abdominal hypertension and abdominal compartment syndrome
From: The open abdomen, indications, management and definitive closure
IAP | The steady-state pressure concealed within the abdominal cavity. Normal = 5–7 mmHg in critically ill adults |
APP | MAP – IAP |
IAH | Sustained or repeated pathological elevation of IAP ≥12 mmHg |
ACS | Sustained IAP >20 mmHg (with or without APP <60 mmHg) that is associated with a new organ dysfunction or failure |
Primary ACS | ACS associated with injury or disease in abdomino-pelvic cavity |
Secondary ACS | ACS in absence of conditions originating in the abdomino-pelvic cavity |